THE WON­DERS OF UV

Asian Diver (English) - - Front Page -

At least 100 species from 26 fish fam­i­lies can de­tect UV light. Sev­eral species are adorned with colours and pat­terns that re­flect UV and can only be seen by fish equipped with eyes pos­sess­ing the nec­es­sary light-sen­si­tive pig­ments. Some ex­am­ples are thread-fin but­ter­fly­fish, Chaetodon au­riga (on its dor­sal fin-edge) and coral grouper, Plec­tropo­mus leop­ar­dus (mark­ings on the flank).

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